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Finding the Fourth Proportional to 249,888, 374,870.96 and 81,368.52

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Solution

The fourth proportional to 249,888, 374,870.96 and 81,368.52 is: 122,065.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,888 : 374,870.96 = 81,368.52 : x
  2. Step 2: Convert to fraction form
    249,888/374,870.96 = 81,368.52/x
  3. Step 3: Cross multiply
    249,888x = 374,870.96 × 81,368.52
  4. Step 4: Simplify right side
    249,888x = 30,502,695,206.18
  5. Step 5: Solve for x
    x = 30,502,695,206.18/249,888
  6. Step 6: Final answer
    x = 122,065.47

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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.