Home / 284,731.36-392,894.76-157,389.28

Finding the Fourth Proportional to 284,731.36, 392,894.76 and 157,389.28

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Solution

The fourth proportional to 284,731.36, 392,894.76 and 157,389.28 is: 217,178.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,731.36 : 392,894.76 = 157,389.28 : x
  2. Step 2: Convert to fraction form
    284,731.36/392,894.76 = 157,389.28/x
  3. Step 3: Cross multiply
    284,731.36x = 392,894.76 × 157,389.28
  4. Step 4: Simplify right side
    284,731.36x = 61,837,423,392.17
  5. Step 5: Solve for x
    x = 61,837,423,392.17/284,731.36
  6. Step 6: Final answer
    x = 217,178.13

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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.