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Finding the Fourth Proportional to 282,681.30, 390,191.10 and 180,980.67

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Solution

The fourth proportional to 282,681.30, 390,191.10 and 180,980.67 is: 249,811.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,681.30 : 390,191.10 = 180,980.67 : x
  2. Step 2: Convert to fraction form
    282,681.30/390,191.10 = 180,980.67/x
  3. Step 3: Cross multiply
    282,681.30x = 390,191.10 × 180,980.67
  4. Step 4: Simplify right side
    282,681.30x = 70,617,046,706.04
  5. Step 5: Solve for x
    x = 70,617,046,706.04/282,681.30
  6. Step 6: Final answer
    x = 249,811.53

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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.