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Finding the Fourth Proportional to 280,094.01, 418,355.04 and 253,398.84

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Solution

The fourth proportional to 280,094.01, 418,355.04 and 253,398.84 is: 378,482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,094.01 : 418,355.04 = 253,398.84 : x
  2. Step 2: Convert to fraction form
    280,094.01/418,355.04 = 253,398.84/x
  3. Step 3: Cross multiply
    280,094.01x = 418,355.04 × 253,398.84
  4. Step 4: Simplify right side
    280,094.01x = 106,010,681,844.15
  5. Step 5: Solve for x
    x = 106,010,681,844.15/280,094.01
  6. Step 6: Final answer
    x = 378,482.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.