Home / 284,743.12-392,928.62-157,411.12

Finding the Fourth Proportional to 284,743.12, 392,928.62 and 157,411.12

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Solution

The fourth proportional to 284,743.12, 392,928.62 and 157,411.12 is: 217,218.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,743.12 : 392,928.62 = 157,411.12 : x
  2. Step 2: Convert to fraction form
    284,743.12/392,928.62 = 157,411.12/x
  3. Step 3: Cross multiply
    284,743.12x = 392,928.62 × 157,411.12
  4. Step 4: Simplify right side
    284,743.12x = 61,851,334,154.25
  5. Step 5: Solve for x
    x = 61,851,334,154.25/284,743.12
  6. Step 6: Final answer
    x = 217,218.01

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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.