Home / 218,931.07-302,125.41-118,329.07

Finding the Fourth Proportional to 218,931.07, 302,125.41 and 118,329.07

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Solution

The fourth proportional to 218,931.07, 302,125.41 and 118,329.07 is: 163,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,931.07 : 302,125.41 = 118,329.07 : x
  2. Step 2: Convert to fraction form
    218,931.07/302,125.41 = 118,329.07/x
  3. Step 3: Cross multiply
    218,931.07x = 302,125.41 × 118,329.07
  4. Step 4: Simplify right side
    218,931.07x = 35,750,218,788.67
  5. Step 5: Solve for x
    x = 35,750,218,788.67/218,931.07
  6. Step 6: Final answer
    x = 163,294.40

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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.