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Finding the Fourth Proportional to 291,700.36, 402,510.18 and 162,607.15

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Solution

The fourth proportional to 291,700.36, 402,510.18 and 162,607.15 is: 224,377.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,700.36 : 402,510.18 = 162,607.15 : x
  2. Step 2: Convert to fraction form
    291,700.36/402,510.18 = 162,607.15/x
  3. Step 3: Cross multiply
    291,700.36x = 402,510.18 × 162,607.15
  4. Step 4: Simplify right side
    291,700.36x = 65,451,033,215.79
  5. Step 5: Solve for x
    x = 65,451,033,215.79/291,700.36
  6. Step 6: Final answer
    x = 224,377.62

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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.