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Finding the Fourth Proportional to 238,010.40, 328,457.70 and 130,578.48

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Solution

The fourth proportional to 238,010.40, 328,457.70 and 130,578.48 is: 180,200.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,010.40 : 328,457.70 = 130,578.48 : x
  2. Step 2: Convert to fraction form
    238,010.40/328,457.70 = 130,578.48/x
  3. Step 3: Cross multiply
    238,010.40x = 328,457.70 × 130,578.48
  4. Step 4: Simplify right side
    238,010.40x = 42,889,507,210.30
  5. Step 5: Solve for x
    x = 42,889,507,210.30/238,010.40
  6. Step 6: Final answer
    x = 180,200.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.