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Finding the Fourth Proportional to 153,028.80, 229,543.20 and 135,970.20

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Solution

The fourth proportional to 153,028.80, 229,543.20 and 135,970.20 is: 203,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,028.80 : 229,543.20 = 135,970.20 : x
  2. Step 2: Convert to fraction form
    153,028.80/229,543.20 = 135,970.20/x
  3. Step 3: Cross multiply
    153,028.80x = 229,543.20 × 135,970.20
  4. Step 4: Simplify right side
    153,028.80x = 31,211,034,812.64
  5. Step 5: Solve for x
    x = 31,211,034,812.64/153,028.80
  6. Step 6: Final answer
    x = 203,955.30

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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.