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Finding the Fourth Proportional to 456,665.10, 630,196.95 and 255,461.10

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Solution

The fourth proportional to 456,665.10, 630,196.95 and 255,461.10 is: 352,535.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,665.10 : 630,196.95 = 255,461.10 : x
  2. Step 2: Convert to fraction form
    456,665.10/630,196.95 = 255,461.10/x
  3. Step 3: Cross multiply
    456,665.10x = 630,196.95 × 255,461.10
  4. Step 4: Simplify right side
    456,665.10x = 160,990,806,063.65
  5. Step 5: Solve for x
    x = 160,990,806,063.65/456,665.10
  6. Step 6: Final answer
    x = 352,535.82

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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.