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Finding the Fourth Proportional to 228,354.76, 342,406.38 and 70,539.40

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Solution

The fourth proportional to 228,354.76, 342,406.38 and 70,539.40 is: 105,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,354.76 : 342,406.38 = 70,539.40 : x
  2. Step 2: Convert to fraction form
    228,354.76/342,406.38 = 70,539.40/x
  3. Step 3: Cross multiply
    228,354.76x = 342,406.38 × 70,539.40
  4. Step 4: Simplify right side
    228,354.76x = 24,153,140,601.37
  5. Step 5: Solve for x
    x = 24,153,140,601.37/228,354.76
  6. Step 6: Final answer
    x = 105,770.25

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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.