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Finding the Fourth Proportional to 313,645.60, 432,823.44 and 170,402.40

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Solution

The fourth proportional to 313,645.60, 432,823.44 and 170,402.40 is: 235,151.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,645.60 : 432,823.44 = 170,402.40 : x
  2. Step 2: Convert to fraction form
    313,645.60/432,823.44 = 170,402.40/x
  3. Step 3: Cross multiply
    313,645.60x = 432,823.44 × 170,402.40
  4. Step 4: Simplify right side
    313,645.60x = 73,754,152,952.26
  5. Step 5: Solve for x
    x = 73,754,152,952.26/313,645.60
  6. Step 6: Final answer
    x = 235,151.24

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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.