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Finding the Fourth Proportional to 302,420.80, 453,631.20 and 169,710.40

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Solution

The fourth proportional to 302,420.80, 453,631.20 and 169,710.40 is: 254,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,420.80 : 453,631.20 = 169,710.40 : x
  2. Step 2: Convert to fraction form
    302,420.80/453,631.20 = 169,710.40/x
  3. Step 3: Cross multiply
    302,420.80x = 453,631.20 × 169,710.40
  4. Step 4: Simplify right side
    302,420.80x = 76,985,932,404.48
  5. Step 5: Solve for x
    x = 76,985,932,404.48/302,420.80
  6. Step 6: Final answer
    x = 254,565.60

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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.