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Finding the Fourth Proportional to 468,346.40, 646,319.52 and 253,486.40

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Solution

The fourth proportional to 468,346.40, 646,319.52 and 253,486.40 is: 349,812.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,346.40 : 646,319.52 = 253,486.40 : x
  2. Step 2: Convert to fraction form
    468,346.40/646,319.52 = 253,486.40/x
  3. Step 3: Cross multiply
    468,346.40x = 646,319.52 × 253,486.40
  4. Step 4: Simplify right side
    468,346.40x = 163,833,208,374.53
  5. Step 5: Solve for x
    x = 163,833,208,374.53/468,346.40
  6. Step 6: Final answer
    x = 349,812.04

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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.