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Finding the Fourth Proportional to 425,302.80, 586,658.34 and 253,105.32

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Solution

The fourth proportional to 425,302.80, 586,658.34 and 253,105.32 is: 349,130.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,302.80 : 586,658.34 = 253,105.32 : x
  2. Step 2: Convert to fraction form
    425,302.80/586,658.34 = 253,105.32/x
  3. Step 3: Cross multiply
    425,302.80x = 586,658.34 × 253,105.32
  4. Step 4: Simplify right side
    425,302.80x = 148,486,346,876.37
  5. Step 5: Solve for x
    x = 148,486,346,876.37/425,302.80
  6. Step 6: Final answer
    x = 349,130.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.