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Finding the Fourth Proportional to 315,870.68, 473,736.44 and 91,182.32

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Solution

The fourth proportional to 315,870.68, 473,736.44 and 91,182.32 is: 136,753.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,870.68 : 473,736.44 = 91,182.32 : x
  2. Step 2: Convert to fraction form
    315,870.68/473,736.44 = 91,182.32/x
  3. Step 3: Cross multiply
    315,870.68x = 473,736.44 × 91,182.32
  4. Step 4: Simplify right side
    315,870.68x = 43,196,387,667.74
  5. Step 5: Solve for x
    x = 43,196,387,667.74/315,870.68
  6. Step 6: Final answer
    x = 136,753.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.