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Finding the Fourth Proportional to 210,154.02, 315,445.46 and 153,826.82

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Solution

The fourth proportional to 210,154.02, 315,445.46 and 153,826.82 is: 230,897.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,154.02 : 315,445.46 = 153,826.82 : x
  2. Step 2: Convert to fraction form
    210,154.02/315,445.46 = 153,826.82/x
  3. Step 3: Cross multiply
    210,154.02x = 315,445.46 × 153,826.82
  4. Step 4: Simplify right side
    210,154.02x = 48,523,970,802.58
  5. Step 5: Solve for x
    x = 48,523,970,802.58/210,154.02
  6. Step 6: Final answer
    x = 230,897.18

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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.