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Finding the Fourth Proportional to 315,155.40, 434,950.71 and 175,468.07

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Solution

The fourth proportional to 315,155.40, 434,950.71 and 175,468.07 is: 242,166.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,155.40 : 434,950.71 = 175,468.07 : x
  2. Step 2: Convert to fraction form
    315,155.40/434,950.71 = 175,468.07/x
  3. Step 3: Cross multiply
    315,155.40x = 434,950.71 × 175,468.07
  4. Step 4: Simplify right side
    315,155.40x = 76,319,959,454.08
  5. Step 5: Solve for x
    x = 76,319,959,454.08/315,155.40
  6. Step 6: Final answer
    x = 242,166.12

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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.