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Finding the Fourth Proportional to 456,277.55, 684,187.91 and 140,693.45

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Solution

The fourth proportional to 456,277.55, 684,187.91 and 140,693.45 is: 210,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,277.55 : 684,187.91 = 140,693.45 : x
  2. Step 2: Convert to fraction form
    456,277.55/684,187.91 = 140,693.45/x
  3. Step 3: Cross multiply
    456,277.55x = 684,187.91 × 140,693.45
  4. Step 4: Simplify right side
    456,277.55x = 96,260,756,802.72
  5. Step 5: Solve for x
    x = 96,260,756,802.72/456,277.55
  6. Step 6: Final answer
    x = 210,969.74

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1.5x scale

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.