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Finding the Fourth Proportional to 157,807.20, 236,127.60 and 143,810.40

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Solution

The fourth proportional to 157,807.20, 236,127.60 and 143,810.40 is: 215,184.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,807.20 : 236,127.60 = 143,810.40 : x
  2. Step 2: Convert to fraction form
    157,807.20/236,127.60 = 143,810.40/x
  3. Step 3: Cross multiply
    157,807.20x = 236,127.60 × 143,810.40
  4. Step 4: Simplify right side
    157,807.20x = 33,957,604,607.04
  5. Step 5: Solve for x
    x = 33,957,604,607.04/157,807.20
  6. Step 6: Final answer
    x = 215,184.13

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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.