Home / 369,125.79-553,734.86-144,457.20

Finding the Fourth Proportional to 369,125.79, 553,734.86 and 144,457.20

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Solution

The fourth proportional to 369,125.79, 553,734.86 and 144,457.20 is: 216,703.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,125.79 : 553,734.86 = 144,457.20 : x
  2. Step 2: Convert to fraction form
    369,125.79/553,734.86 = 144,457.20/x
  3. Step 3: Cross multiply
    369,125.79x = 553,734.86 × 144,457.20
  4. Step 4: Simplify right side
    369,125.79x = 79,990,988,802.33
  5. Step 5: Solve for x
    x = 79,990,988,802.33/369,125.79
  6. Step 6: Final answer
    x = 216,703.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.