Home / 280,191.15-386,663.35-152,866.76

Finding the Fourth Proportional to 280,191.15, 386,663.35 and 152,866.76

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Solution

The fourth proportional to 280,191.15, 386,663.35 and 152,866.76 is: 210,955.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,191.15 : 386,663.35 = 152,866.76 : x
  2. Step 2: Convert to fraction form
    280,191.15/386,663.35 = 152,866.76/x
  3. Step 3: Cross multiply
    280,191.15x = 386,663.35 × 152,866.76
  4. Step 4: Simplify right side
    280,191.15x = 59,107,972,848.02
  5. Step 5: Solve for x
    x = 59,107,972,848.02/280,191.15
  6. Step 6: Final answer
    x = 210,955.89

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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.