Home / 369,947.20-555,066.60-145,269.40

Finding the Fourth Proportional to 369,947.20, 555,066.60 and 145,269.40

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Solution

The fourth proportional to 369,947.20, 555,066.60 and 145,269.40 is: 217,961.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,947.20 : 555,066.60 = 145,269.40 : x
  2. Step 2: Convert to fraction form
    369,947.20/555,066.60 = 145,269.40/x
  3. Step 3: Cross multiply
    369,947.20x = 555,066.60 × 145,269.40
  4. Step 4: Simplify right side
    369,947.20x = 80,634,191,942.04
  5. Step 5: Solve for x
    x = 80,634,191,942.04/369,947.20
  6. Step 6: Final answer
    x = 217,961.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.