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Finding the Fourth Proportional to 375,875.68, 518,206.66 and 298,607.72

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Solution

The fourth proportional to 375,875.68, 518,206.66 and 298,607.72 is: 411,680.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,875.68 : 518,206.66 = 298,607.72 : x
  2. Step 2: Convert to fraction form
    375,875.68/518,206.66 = 298,607.72/x
  3. Step 3: Cross multiply
    375,875.68x = 518,206.66 × 298,607.72
  4. Step 4: Simplify right side
    375,875.68x = 154,740,509,231.42
  5. Step 5: Solve for x
    x = 154,740,509,231.42/375,875.68
  6. Step 6: Final answer
    x = 411,680.02

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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.