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Finding the Fourth Proportional to 313,329.42, 432,506.93 and 186,005.12

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Solution

The fourth proportional to 313,329.42, 432,506.93 and 186,005.12 is: 256,753.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,329.42 : 432,506.93 = 186,005.12 : x
  2. Step 2: Convert to fraction form
    313,329.42/432,506.93 = 186,005.12/x
  3. Step 3: Cross multiply
    313,329.42x = 432,506.93 × 186,005.12
  4. Step 4: Simplify right side
    313,329.42x = 80,448,500,322.92
  5. Step 5: Solve for x
    x = 80,448,500,322.92/313,329.42
  6. Step 6: Final answer
    x = 256,753.74

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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.