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Finding the Fourth Proportional to 210,193.14, 315,220.59 and 69,914.10

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Solution

The fourth proportional to 210,193.14, 315,220.59 and 69,914.10 is: 104,848.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,193.14 : 315,220.59 = 69,914.10 : x
  2. Step 2: Convert to fraction form
    210,193.14/315,220.59 = 69,914.10/x
  3. Step 3: Cross multiply
    210,193.14x = 315,220.59 × 69,914.10
  4. Step 4: Simplify right side
    210,193.14x = 22,038,363,851.32
  5. Step 5: Solve for x
    x = 22,038,363,851.32/210,193.14
  6. Step 6: Final answer
    x = 104,848.16

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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.