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Finding the Fourth Proportional to 173,430.60, 260,081.10 and 120,683.40

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Solution

The fourth proportional to 173,430.60, 260,081.10 and 120,683.40 is: 180,980.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,430.60 : 260,081.10 = 120,683.40 : x
  2. Step 2: Convert to fraction form
    173,430.60/260,081.10 = 120,683.40/x
  3. Step 3: Cross multiply
    173,430.60x = 260,081.10 × 120,683.40
  4. Step 4: Simplify right side
    173,430.60x = 31,387,471,423.74
  5. Step 5: Solve for x
    x = 31,387,471,423.74/173,430.60
  6. Step 6: Final answer
    x = 180,980.01

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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.