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Finding the Fourth Proportional to 314,655.90, 434,223.44 and 171,415.60

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Solution

The fourth proportional to 314,655.90, 434,223.44 and 171,415.60 is: 236,552.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,655.90 : 434,223.44 = 171,415.60 : x
  2. Step 2: Convert to fraction form
    314,655.90/434,223.44 = 171,415.60/x
  3. Step 3: Cross multiply
    314,655.90x = 434,223.44 × 171,415.60
  4. Step 4: Simplify right side
    314,655.90x = 74,432,671,501.66
  5. Step 5: Solve for x
    x = 74,432,671,501.66/314,655.90
  6. Step 6: Final answer
    x = 236,552.60

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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.