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Finding the Fourth Proportional to 425,111.22, 586,678.14 and 243,821.88

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Solution

The fourth proportional to 425,111.22, 586,678.14 and 243,821.88 is: 336,488.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,111.22 : 586,678.14 = 243,821.88 : x
  2. Step 2: Convert to fraction form
    425,111.22/586,678.14 = 243,821.88/x
  3. Step 3: Cross multiply
    425,111.22x = 586,678.14 × 243,821.88
  4. Step 4: Simplify right side
    425,111.22x = 143,044,967,049.70
  5. Step 5: Solve for x
    x = 143,044,967,049.70/425,111.22
  6. Step 6: Final answer
    x = 336,488.34

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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.