Home / 313,631.53-432,780.24-177,638.32

Finding the Fourth Proportional to 313,631.53, 432,780.24 and 177,638.32

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Solution

The fourth proportional to 313,631.53, 432,780.24 and 177,638.32 is: 245,123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,631.53 : 432,780.24 = 177,638.32 : x
  2. Step 2: Convert to fraction form
    313,631.53/432,780.24 = 177,638.32/x
  3. Step 3: Cross multiply
    313,631.53x = 432,780.24 × 177,638.32
  4. Step 4: Simplify right side
    313,631.53x = 76,878,354,762.80
  5. Step 5: Solve for x
    x = 76,878,354,762.80/313,631.53
  6. Step 6: Final answer
    x = 245,123.17

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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.