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Finding the Fourth Proportional to 434,688.66, 651,963 and 119,071.80

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Solution

The fourth proportional to 434,688.66, 651,963 and 119,071.80 is: 178,588.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,688.66 : 651,963 = 119,071.80 : x
  2. Step 2: Convert to fraction form
    434,688.66/651,963 = 119,071.80/x
  3. Step 3: Cross multiply
    434,688.66x = 651,963 × 119,071.80
  4. Step 4: Simplify right side
    434,688.66x = 77,630,407,943.40
  5. Step 5: Solve for x
    x = 77,630,407,943.40/434,688.66
  6. Step 6: Final answer
    x = 178,588.53

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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.