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Finding the Fourth Proportional to 280,597.03, 387,209.43 and 153,248.02

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Solution

The fourth proportional to 280,597.03, 387,209.43 and 153,248.02 is: 211,474.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,597.03 : 387,209.43 = 153,248.02 : x
  2. Step 2: Convert to fraction form
    280,597.03/387,209.43 = 153,248.02/x
  3. Step 3: Cross multiply
    280,597.03x = 387,209.43 × 153,248.02
  4. Step 4: Simplify right side
    280,597.03x = 59,339,077,504.81
  5. Step 5: Solve for x
    x = 59,339,077,504.81/280,597.03
  6. Step 6: Final answer
    x = 211,474.36

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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.