Home / 251,681.02-347,319.60-138,503.76

Finding the Fourth Proportional to 251,681.02, 347,319.60 and 138,503.76

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Solution

The fourth proportional to 251,681.02, 347,319.60 and 138,503.76 is: 191,135.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,681.02 : 347,319.60 = 138,503.76 : x
  2. Step 2: Convert to fraction form
    251,681.02/347,319.60 = 138,503.76/x
  3. Step 3: Cross multiply
    251,681.02x = 347,319.60 × 138,503.76
  4. Step 4: Simplify right side
    251,681.02x = 48,105,070,521.70
  5. Step 5: Solve for x
    x = 48,105,070,521.70/251,681.02
  6. Step 6: Final answer
    x = 191,135.07

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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.