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Finding the Fourth Proportional to 531,502.80, 796,980.60 and 157,477.20

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Solution

The fourth proportional to 531,502.80, 796,980.60 and 157,477.20 is: 236,134.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,502.80 : 796,980.60 = 157,477.20 : x
  2. Step 2: Convert to fraction form
    531,502.80/796,980.60 = 157,477.20/x
  3. Step 3: Cross multiply
    531,502.80x = 796,980.60 × 157,477.20
  4. Step 4: Simplify right side
    531,502.80x = 125,506,273,342.32
  5. Step 5: Solve for x
    x = 125,506,273,342.32/531,502.80
  6. Step 6: Final answer
    x = 236,134.74

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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.