Home / 228,619.10-342,928.65-144,638.30

Finding the Fourth Proportional to 228,619.10, 342,928.65 and 144,638.30

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Solution

The fourth proportional to 228,619.10, 342,928.65 and 144,638.30 is: 216,957.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,619.10 : 342,928.65 = 144,638.30 : x
  2. Step 2: Convert to fraction form
    228,619.10/342,928.65 = 144,638.30/x
  3. Step 3: Cross multiply
    228,619.10x = 342,928.65 × 144,638.30
  4. Step 4: Simplify right side
    228,619.10x = 49,600,616,957.30
  5. Step 5: Solve for x
    x = 49,600,616,957.30/228,619.10
  6. Step 6: Final answer
    x = 216,957.45

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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.