Home / 384,853.08-531,098.02-215,087.20

Finding the Fourth Proportional to 384,853.08, 531,098.02 and 215,087.20

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Solution

The fourth proportional to 384,853.08, 531,098.02 and 215,087.20 is: 296,820.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,853.08 : 531,098.02 = 215,087.20 : x
  2. Step 2: Convert to fraction form
    384,853.08/531,098.02 = 215,087.20/x
  3. Step 3: Cross multiply
    384,853.08x = 531,098.02 × 215,087.20
  4. Step 4: Simplify right side
    384,853.08x = 114,232,386,047.34
  5. Step 5: Solve for x
    x = 114,232,386,047.34/384,853.08
  6. Step 6: Final answer
    x = 296,820.77

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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.