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Finding the Fourth Proportional to 357,339.47, 533,438.81 and 306,187.67

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Solution

The fourth proportional to 357,339.47, 533,438.81 and 306,187.67 is: 457,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,339.47 : 533,438.81 = 306,187.67 : x
  2. Step 2: Convert to fraction form
    357,339.47/533,438.81 = 306,187.67/x
  3. Step 3: Cross multiply
    357,339.47x = 533,438.81 × 306,187.67
  4. Step 4: Simplify right side
    357,339.47x = 163,332,386,321.47
  5. Step 5: Solve for x
    x = 163,332,386,321.47/357,339.47
  6. Step 6: Final answer
    x = 457,079.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.