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Finding the Fourth Proportional to 346,319.66, 519,531.44 and 121,640.50

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Solution

The fourth proportional to 346,319.66, 519,531.44 and 121,640.50 is: 182,479.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,319.66 : 519,531.44 = 121,640.50 : x
  2. Step 2: Convert to fraction form
    346,319.66/519,531.44 = 121,640.50/x
  3. Step 3: Cross multiply
    346,319.66x = 519,531.44 × 121,640.50
  4. Step 4: Simplify right side
    346,319.66x = 63,196,064,127.32
  5. Step 5: Solve for x
    x = 63,196,064,127.32/346,319.66
  6. Step 6: Final answer
    x = 182,479.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.