Home / 306,218.18-459,225.07-128,692.10

Finding the Fourth Proportional to 306,218.18, 459,225.07 and 128,692.10

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Solution

The fourth proportional to 306,218.18, 459,225.07 and 128,692.10 is: 192,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,218.18 : 459,225.07 = 128,692.10 : x
  2. Step 2: Convert to fraction form
    306,218.18/459,225.07 = 128,692.10/x
  3. Step 3: Cross multiply
    306,218.18x = 459,225.07 × 128,692.10
  4. Step 4: Simplify right side
    306,218.18x = 59,098,638,630.95
  5. Step 5: Solve for x
    x = 59,098,638,630.95/306,218.18
  6. Step 6: Final answer
    x = 192,995.20

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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.