Home / 305,246.10-457,869.15-83,630.10

Finding the Fourth Proportional to 305,246.10, 457,869.15 and 83,630.10

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Solution

The fourth proportional to 305,246.10, 457,869.15 and 83,630.10 is: 125,445.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,246.10 : 457,869.15 = 83,630.10 : x
  2. Step 2: Convert to fraction form
    305,246.10/457,869.15 = 83,630.10/x
  3. Step 3: Cross multiply
    305,246.10x = 457,869.15 × 83,630.10
  4. Step 4: Simplify right side
    305,246.10x = 38,291,642,801.42
  5. Step 5: Solve for x
    x = 38,291,642,801.42/305,246.10
  6. Step 6: Final answer
    x = 125,445.15

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1.5x scale

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.