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Finding the Fourth Proportional to 228,528.72, 342,809.08 and 70,736.40

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Solution

The fourth proportional to 228,528.72, 342,809.08 and 70,736.40 is: 106,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,528.72 : 342,809.08 = 70,736.40 : x
  2. Step 2: Convert to fraction form
    228,528.72/342,809.08 = 70,736.40/x
  3. Step 3: Cross multiply
    228,528.72x = 342,809.08 × 70,736.40
  4. Step 4: Simplify right side
    228,528.72x = 24,249,080,206.51
  5. Step 5: Solve for x
    x = 24,249,080,206.51/228,528.72
  6. Step 6: Final answer
    x = 106,109.55

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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.