Home / 249,925.40-374,936.70-72,438.20

Finding the Fourth Proportional to 249,925.40, 374,936.70 and 72,438.20

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Solution

The fourth proportional to 249,925.40, 374,936.70 and 72,438.20 is: 108,671.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,925.40 : 374,936.70 = 72,438.20 : x
  2. Step 2: Convert to fraction form
    249,925.40/374,936.70 = 72,438.20/x
  3. Step 3: Cross multiply
    249,925.40x = 374,936.70 × 72,438.20
  4. Step 4: Simplify right side
    249,925.40x = 27,159,739,661.94
  5. Step 5: Solve for x
    x = 27,159,739,661.94/249,925.40
  6. Step 6: Final answer
    x = 108,671.39

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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.