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Finding the Fourth Proportional to 358,464.80, 537,697.20 and 342,718.40

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Solution

The fourth proportional to 358,464.80, 537,697.20 and 342,718.40 is: 514,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,464.80 : 537,697.20 = 342,718.40 : x
  2. Step 2: Convert to fraction form
    358,464.80/537,697.20 = 342,718.40/x
  3. Step 3: Cross multiply
    358,464.80x = 537,697.20 × 342,718.40
  4. Step 4: Simplify right side
    358,464.80x = 184,278,724,068.48
  5. Step 5: Solve for x
    x = 184,278,724,068.48/358,464.80
  6. Step 6: Final answer
    x = 514,077.60

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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.