Home / 228,252.36-315,031.50-152,931.72

Finding the Fourth Proportional to 228,252.36, 315,031.50 and 152,931.72

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Solution

The fourth proportional to 228,252.36, 315,031.50 and 152,931.72 is: 211,074.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,252.36 : 315,031.50 = 152,931.72 : x
  2. Step 2: Convert to fraction form
    228,252.36/315,031.50 = 152,931.72/x
  3. Step 3: Cross multiply
    228,252.36x = 315,031.50 × 152,931.72
  4. Step 4: Simplify right side
    228,252.36x = 48,178,309,149.18
  5. Step 5: Solve for x
    x = 48,178,309,149.18/228,252.36
  6. Step 6: Final answer
    x = 211,074.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.