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Finding the Fourth Proportional to 280,807.29, 387,500.58 and 153,482.94

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Solution

The fourth proportional to 280,807.29, 387,500.58 and 153,482.94 is: 211,799.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,807.29 : 387,500.58 = 153,482.94 : x
  2. Step 2: Convert to fraction form
    280,807.29/387,500.58 = 153,482.94/x
  3. Step 3: Cross multiply
    280,807.29x = 387,500.58 × 153,482.94
  4. Step 4: Simplify right side
    280,807.29x = 59,474,728,270.11
  5. Step 5: Solve for x
    x = 59,474,728,270.11/280,807.29
  6. Step 6: Final answer
    x = 211,799.09

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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.