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Finding the Fourth Proportional to 280,152.35, 418,043.48 and 249,959.01

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Solution

The fourth proportional to 280,152.35, 418,043.48 and 249,959.01 is: 372,988.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,152.35 : 418,043.48 = 249,959.01 : x
  2. Step 2: Convert to fraction form
    280,152.35/418,043.48 = 249,959.01/x
  3. Step 3: Cross multiply
    280,152.35x = 418,043.48 × 249,959.01
  4. Step 4: Simplify right side
    280,152.35x = 104,493,734,397.76
  5. Step 5: Solve for x
    x = 104,493,734,397.76/280,152.35
  6. Step 6: Final answer
    x = 372,988.96

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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.