Home / 438,123.20-657,184.80-248,510.30

Finding the Fourth Proportional to 438,123.20, 657,184.80 and 248,510.30

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Solution

The fourth proportional to 438,123.20, 657,184.80 and 248,510.30 is: 372,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,123.20 : 657,184.80 = 248,510.30 : x
  2. Step 2: Convert to fraction form
    438,123.20/657,184.80 = 248,510.30/x
  3. Step 3: Cross multiply
    438,123.20x = 657,184.80 × 248,510.30
  4. Step 4: Simplify right side
    438,123.20x = 163,317,191,803.44
  5. Step 5: Solve for x
    x = 163,317,191,803.44/438,123.20
  6. Step 6: Final answer
    x = 372,765.45

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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.