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Finding the Fourth Proportional to 280,063.62, 386,483.13 and 152,731.62

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Solution

The fourth proportional to 280,063.62, 386,483.13 and 152,731.62 is: 210,767.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,063.62 : 386,483.13 = 152,731.62 : x
  2. Step 2: Convert to fraction form
    280,063.62/386,483.13 = 152,731.62/x
  3. Step 3: Cross multiply
    280,063.62x = 386,483.13 × 152,731.62
  4. Step 4: Simplify right side
    280,063.62x = 59,028,194,547.57
  5. Step 5: Solve for x
    x = 59,028,194,547.57/280,063.62
  6. Step 6: Final answer
    x = 210,767.09

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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.