Home / 284,538.02-392,670.38-157,221.81

Finding the Fourth Proportional to 284,538.02, 392,670.38 and 157,221.81

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Solution

The fourth proportional to 284,538.02, 392,670.38 and 157,221.81 is: 216,970.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,538.02 : 392,670.38 = 157,221.81 : x
  2. Step 2: Convert to fraction form
    284,538.02/392,670.38 = 157,221.81/x
  3. Step 3: Cross multiply
    284,538.02x = 392,670.38 × 157,221.81
  4. Step 4: Simplify right side
    284,538.02x = 61,736,348,270.04
  5. Step 5: Solve for x
    x = 61,736,348,270.04/284,538.02
  6. Step 6: Final answer
    x = 216,970.47

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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.