Home / 302,187.45-453,445.20-124,712.40

Finding the Fourth Proportional to 302,187.45, 453,445.20 and 124,712.40

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Solution

The fourth proportional to 302,187.45, 453,445.20 and 124,712.40 is: 187,136.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,187.45 : 453,445.20 = 124,712.40 : x
  2. Step 2: Convert to fraction form
    302,187.45/453,445.20 = 124,712.40/x
  3. Step 3: Cross multiply
    302,187.45x = 453,445.20 × 124,712.40
  4. Step 4: Simplify right side
    302,187.45x = 56,550,239,160.48
  5. Step 5: Solve for x
    x = 56,550,239,160.48/302,187.45
  6. Step 6: Final answer
    x = 187,136.29

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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.