Home / 315,153.18-434,897.10-171,908.33

Finding the Fourth Proportional to 315,153.18, 434,897.10 and 171,908.33

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Solution

The fourth proportional to 315,153.18, 434,897.10 and 171,908.33 is: 237,225.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,153.18 : 434,897.10 = 171,908.33 : x
  2. Step 2: Convert to fraction form
    315,153.18/434,897.10 = 171,908.33/x
  3. Step 3: Cross multiply
    315,153.18x = 434,897.10 × 171,908.33
  4. Step 4: Simplify right side
    315,153.18x = 74,762,432,008.36
  5. Step 5: Solve for x
    x = 74,762,432,008.36/315,153.18
  6. Step 6: Final answer
    x = 237,225.69

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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.