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Finding the Fourth Proportional to 380,364.75, 524,919.76 and 210,598.88

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Solution

The fourth proportional to 380,364.75, 524,919.76 and 210,598.88 is: 290,635.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,364.75 : 524,919.76 = 210,598.88 : x
  2. Step 2: Convert to fraction form
    380,364.75/524,919.76 = 210,598.88/x
  3. Step 3: Cross multiply
    380,364.75x = 524,919.76 × 210,598.88
  4. Step 4: Simplify right side
    380,364.75x = 110,547,510,394.77
  5. Step 5: Solve for x
    x = 110,547,510,394.77/380,364.75
  6. Step 6: Final answer
    x = 290,635.53

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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.