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Finding the Fourth Proportional to 245,854.32, 368,489.88 and 105,316.08

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Solution

The fourth proportional to 245,854.32, 368,489.88 and 105,316.08 is: 157,849.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,854.32 : 368,489.88 = 105,316.08 : x
  2. Step 2: Convert to fraction form
    245,854.32/368,489.88 = 105,316.08/x
  3. Step 3: Cross multiply
    245,854.32x = 368,489.88 × 105,316.08
  4. Step 4: Simplify right side
    245,854.32x = 38,807,909,681.27
  5. Step 5: Solve for x
    x = 38,807,909,681.27/245,854.32
  6. Step 6: Final answer
    x = 157,849.21

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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.