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Finding the Fourth Proportional to 369,615.22, 510,066.53 and 208,471.60

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Solution

The fourth proportional to 369,615.22, 510,066.53 and 208,471.60 is: 287,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,615.22 : 510,066.53 = 208,471.60 : x
  2. Step 2: Convert to fraction form
    369,615.22/510,066.53 = 208,471.60/x
  3. Step 3: Cross multiply
    369,615.22x = 510,066.53 × 208,471.60
  4. Step 4: Simplify right side
    369,615.22x = 106,334,385,615.55
  5. Step 5: Solve for x
    x = 106,334,385,615.55/369,615.22
  6. Step 6: Final answer
    x = 287,689.41

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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.