Home / 459,461.40-689,235.31-135,249.70

Finding the Fourth Proportional to 459,461.40, 689,235.31 and 135,249.70

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Solution

The fourth proportional to 459,461.40, 689,235.31 and 135,249.70 is: 202,887.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,461.40 : 689,235.31 = 135,249.70 : x
  2. Step 2: Convert to fraction form
    459,461.40/689,235.31 = 135,249.70/x
  3. Step 3: Cross multiply
    459,461.40x = 689,235.31 × 135,249.70
  4. Step 4: Simplify right side
    459,461.40x = 93,218,870,291.87
  5. Step 5: Solve for x
    x = 93,218,870,291.87/459,461.40
  6. Step 6: Final answer
    x = 202,887.27

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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.