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Finding the Fourth Proportional to 358,204.80, 537,307.20 and 342,458.40

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Solution

The fourth proportional to 358,204.80, 537,307.20 and 342,458.40 is: 513,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,204.80 : 537,307.20 = 342,458.40 : x
  2. Step 2: Convert to fraction form
    358,204.80/537,307.20 = 342,458.40/x
  3. Step 3: Cross multiply
    358,204.80x = 537,307.20 × 342,458.40
  4. Step 4: Simplify right side
    358,204.80x = 184,005,364,020.48
  5. Step 5: Solve for x
    x = 184,005,364,020.48/358,204.80
  6. Step 6: Final answer
    x = 513,687.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.