Home / 280,799.08-387,497.03-153,475.58

Finding the Fourth Proportional to 280,799.08, 387,497.03 and 153,475.58

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Solution

The fourth proportional to 280,799.08, 387,497.03 and 153,475.58 is: 211,793.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,799.08 : 387,497.03 = 153,475.58 : x
  2. Step 2: Convert to fraction form
    280,799.08/387,497.03 = 153,475.58/x
  3. Step 3: Cross multiply
    280,799.08x = 387,497.03 × 153,475.58
  4. Step 4: Simplify right side
    280,799.08x = 59,471,331,427.53
  5. Step 5: Solve for x
    x = 59,471,331,427.53/280,799.08
  6. Step 6: Final answer
    x = 211,793.18

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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.