Home / 209,004.12-288,443.48-118,376.21

Finding the Fourth Proportional to 209,004.12, 288,443.48 and 118,376.21

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Solution

The fourth proportional to 209,004.12, 288,443.48 and 118,376.21 is: 163,369.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,004.12 : 288,443.48 = 118,376.21 : x
  2. Step 2: Convert to fraction form
    209,004.12/288,443.48 = 118,376.21/x
  3. Step 3: Cross multiply
    209,004.12x = 288,443.48 × 118,376.21
  4. Step 4: Simplify right side
    209,004.12x = 34,144,843,927.51
  5. Step 5: Solve for x
    x = 34,144,843,927.51/209,004.12
  6. Step 6: Final answer
    x = 163,369.24

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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.