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Finding the Fourth Proportional to 313,724.72, 432,938.76 and 170,482.16

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Solution

The fourth proportional to 313,724.72, 432,938.76 and 170,482.16 is: 235,264.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,724.72 : 432,938.76 = 170,482.16 : x
  2. Step 2: Convert to fraction form
    313,724.72/432,938.76 = 170,482.16/x
  3. Step 3: Cross multiply
    313,724.72x = 432,938.76 × 170,482.16
  4. Step 4: Simplify right side
    313,724.72x = 73,808,334,952.52
  5. Step 5: Solve for x
    x = 73,808,334,952.52/313,724.72
  6. Step 6: Final answer
    x = 235,264.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.