Home / 285,220.95-427,853.70-127,465.35

Finding the Fourth Proportional to 285,220.95, 427,853.70 and 127,465.35

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Solution

The fourth proportional to 285,220.95, 427,853.70 and 127,465.35 is: 191,207.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,220.95 : 427,853.70 = 127,465.35 : x
  2. Step 2: Convert to fraction form
    285,220.95/427,853.70 = 127,465.35/x
  3. Step 3: Cross multiply
    285,220.95x = 427,853.70 × 127,465.35
  4. Step 4: Simplify right side
    285,220.95x = 54,536,521,619.30
  5. Step 5: Solve for x
    x = 54,536,521,619.30/285,220.95
  6. Step 6: Final answer
    x = 191,207.98

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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.