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Finding the Fourth Proportional to 468,095.78, 645,971.60 and 253,235.18

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Solution

The fourth proportional to 468,095.78, 645,971.60 and 253,235.18 is: 349,464.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,095.78 : 645,971.60 = 253,235.18 : x
  2. Step 2: Convert to fraction form
    468,095.78/645,971.60 = 253,235.18/x
  3. Step 3: Cross multiply
    468,095.78x = 645,971.60 × 253,235.18
  4. Step 4: Simplify right side
    468,095.78x = 163,582,734,400.89
  5. Step 5: Solve for x
    x = 163,582,734,400.89/468,095.78
  6. Step 6: Final answer
    x = 349,464.24

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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.