Home / 316,342.81-474,514.20-138,851.35

Finding the Fourth Proportional to 316,342.81, 474,514.20 and 138,851.35

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Solution

The fourth proportional to 316,342.81, 474,514.20 and 138,851.35 is: 208,277.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,342.81 : 474,514.20 = 138,851.35 : x
  2. Step 2: Convert to fraction form
    316,342.81/474,514.20 = 138,851.35/x
  3. Step 3: Cross multiply
    316,342.81x = 474,514.20 × 138,851.35
  4. Step 4: Simplify right side
    316,342.81x = 65,886,937,264.17
  5. Step 5: Solve for x
    x = 65,886,937,264.17/316,342.81
  6. Step 6: Final answer
    x = 208,277.02

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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.