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Finding the Fourth Proportional to 313,417.64, 432,518.06 and 170,177.68

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Solution

The fourth proportional to 313,417.64, 432,518.06 and 170,177.68 is: 234,846.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,417.64 : 432,518.06 = 170,177.68 : x
  2. Step 2: Convert to fraction form
    313,417.64/432,518.06 = 170,177.68/x
  3. Step 3: Cross multiply
    313,417.64x = 432,518.06 × 170,177.68
  4. Step 4: Simplify right side
    313,417.64x = 73,604,920,008.90
  5. Step 5: Solve for x
    x = 73,604,920,008.90/313,417.64
  6. Step 6: Final answer
    x = 234,846.13

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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.