Home / 249,426.40-374,139.60-99,689.80

Finding the Fourth Proportional to 249,426.40, 374,139.60 and 99,689.80

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Solution

The fourth proportional to 249,426.40, 374,139.60 and 99,689.80 is: 149,534.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,426.40 : 374,139.60 = 99,689.80 : x
  2. Step 2: Convert to fraction form
    249,426.40/374,139.60 = 99,689.80/x
  3. Step 3: Cross multiply
    249,426.40x = 374,139.60 × 99,689.80
  4. Step 4: Simplify right side
    249,426.40x = 37,297,901,896.08
  5. Step 5: Solve for x
    x = 37,297,901,896.08/249,426.40
  6. Step 6: Final answer
    x = 149,534.70

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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.