Home / 318,944.96-440,142-175,701.68

Finding the Fourth Proportional to 318,944.96, 440,142 and 175,701.68

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Solution

The fourth proportional to 318,944.96, 440,142 and 175,701.68 is: 242,467.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,944.96 : 440,142 = 175,701.68 : x
  2. Step 2: Convert to fraction form
    318,944.96/440,142 = 175,701.68/x
  3. Step 3: Cross multiply
    318,944.96x = 440,142 × 175,701.68
  4. Step 4: Simplify right side
    318,944.96x = 77,333,688,838.56
  5. Step 5: Solve for x
    x = 77,333,688,838.56/318,944.96
  6. Step 6: Final answer
    x = 242,467.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.