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Finding the Fourth Proportional to 213,909.09, 295,210.94 and 122,030.40

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Solution

The fourth proportional to 213,909.09, 295,210.94 and 122,030.40 is: 168,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,909.09 : 295,210.94 = 122,030.40 : x
  2. Step 2: Convert to fraction form
    213,909.09/295,210.94 = 122,030.40/x
  3. Step 3: Cross multiply
    213,909.09x = 295,210.94 × 122,030.40
  4. Step 4: Simplify right side
    213,909.09x = 36,024,708,482.42
  5. Step 5: Solve for x
    x = 36,024,708,482.42/213,909.09
  6. Step 6: Final answer
    x = 168,411.30

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