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Finding the Fourth Proportional to 357,752.32, 493,528.08 and 257,208.64

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Solution

The fourth proportional to 357,752.32, 493,528.08 and 257,208.64 is: 354,825.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,752.32 : 493,528.08 = 257,208.64 : x
  2. Step 2: Convert to fraction form
    357,752.32/493,528.08 = 257,208.64/x
  3. Step 3: Cross multiply
    357,752.32x = 493,528.08 × 257,208.64
  4. Step 4: Simplify right side
    357,752.32x = 126,939,686,258.61
  5. Step 5: Solve for x
    x = 126,939,686,258.61/357,752.32
  6. Step 6: Final answer
    x = 354,825.61

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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.