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Finding the Fourth Proportional to 315,570.31, 473,359.65 and 105,208.32

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Solution

The fourth proportional to 315,570.31, 473,359.65 and 105,208.32 is: 157,813.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,570.31 : 473,359.65 = 105,208.32 : x
  2. Step 2: Convert to fraction form
    315,570.31/473,359.65 = 105,208.32/x
  3. Step 3: Cross multiply
    315,570.31x = 473,359.65 × 105,208.32
  4. Step 4: Simplify right side
    315,570.31x = 49,801,373,532.29
  5. Step 5: Solve for x
    x = 49,801,373,532.29/315,570.31
  6. Step 6: Final answer
    x = 157,813.88

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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.