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Finding the Fourth Proportional to 180,802.76, 249,509.58 and 100,231.52

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Solution

The fourth proportional to 180,802.76, 249,509.58 and 100,231.52 is: 138,320.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,802.76 : 249,509.58 = 100,231.52 : x
  2. Step 2: Convert to fraction form
    180,802.76/249,509.58 = 100,231.52/x
  3. Step 3: Cross multiply
    180,802.76x = 249,509.58 × 100,231.52
  4. Step 4: Simplify right side
    180,802.76x = 25,008,724,457.96
  5. Step 5: Solve for x
    x = 25,008,724,457.96/180,802.76
  6. Step 6: Final answer
    x = 138,320.48

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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.