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Finding the Fourth Proportional to 153,457.50, 230,186.25 and 42,649.50

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Solution

The fourth proportional to 153,457.50, 230,186.25 and 42,649.50 is: 63,974.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,457.50 : 230,186.25 = 42,649.50 : x
  2. Step 2: Convert to fraction form
    153,457.50/230,186.25 = 42,649.50/x
  3. Step 3: Cross multiply
    153,457.50x = 230,186.25 × 42,649.50
  4. Step 4: Simplify right side
    153,457.50x = 9,817,328,469.38
  5. Step 5: Solve for x
    x = 9,817,328,469.38/153,457.50
  6. Step 6: Final answer
    x = 63,974.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.