Home / 268,312.50-402,658.29-128,082.06

Finding the Fourth Proportional to 268,312.50, 402,658.29 and 128,082.06

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Solution

The fourth proportional to 268,312.50, 402,658.29 and 128,082.06 is: 192,213.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,312.50 : 402,658.29 = 128,082.06 : x
  2. Step 2: Convert to fraction form
    268,312.50/402,658.29 = 128,082.06/x
  3. Step 3: Cross multiply
    268,312.50x = 402,658.29 × 128,082.06
  4. Step 4: Simplify right side
    268,312.50x = 51,573,303,259.28
  5. Step 5: Solve for x
    x = 51,573,303,259.28/268,312.50
  6. Step 6: Final answer
    x = 192,213.57

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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.