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Finding the Fourth Proportional to 336,000.40, 503,417.40 and 315,005.20

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Solution

The fourth proportional to 336,000.40, 503,417.40 and 315,005.20 is: 471,961.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,000.40 : 503,417.40 = 315,005.20 : x
  2. Step 2: Convert to fraction form
    336,000.40/503,417.40 = 315,005.20/x
  3. Step 3: Cross multiply
    336,000.40x = 503,417.40 × 315,005.20
  4. Step 4: Simplify right side
    336,000.40x = 158,579,098,770.48
  5. Step 5: Solve for x
    x = 158,579,098,770.48/336,000.40
  6. Step 6: Final answer
    x = 471,961.04

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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.