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Finding the Fourth Proportional to 346,752.52, 478,386.58 and 256,325.55

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Solution

The fourth proportional to 346,752.52, 478,386.58 and 256,325.55 is: 353,631.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,752.52 : 478,386.58 = 256,325.55 : x
  2. Step 2: Convert to fraction form
    346,752.52/478,386.58 = 256,325.55/x
  3. Step 3: Cross multiply
    346,752.52x = 478,386.58 × 256,325.55
  4. Step 4: Simplify right side
    346,752.52x = 122,622,703,231.12
  5. Step 5: Solve for x
    x = 122,622,703,231.12/346,752.52
  6. Step 6: Final answer
    x = 353,631.76

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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.