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Finding the Fourth Proportional to 315,169.50, 434,970.33 and 175,482.15

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Solution

The fourth proportional to 315,169.50, 434,970.33 and 175,482.15 is: 242,185.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,169.50 : 434,970.33 = 175,482.15 : x
  2. Step 2: Convert to fraction form
    315,169.50/434,970.33 = 175,482.15/x
  3. Step 3: Cross multiply
    315,169.50x = 434,970.33 × 175,482.15
  4. Step 4: Simplify right side
    315,169.50x = 76,329,528,694.61
  5. Step 5: Solve for x
    x = 76,329,528,694.61/315,169.50
  6. Step 6: Final answer
    x = 242,185.65

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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.