Home / 389,823.54-537,956.55-210,975.54

Finding the Fourth Proportional to 389,823.54, 537,956.55 and 210,975.54

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Solution

The fourth proportional to 389,823.54, 537,956.55 and 210,975.54 is: 291,146.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,823.54 : 537,956.55 = 210,975.54 : x
  2. Step 2: Convert to fraction form
    389,823.54/537,956.55 = 210,975.54/x
  3. Step 3: Cross multiply
    389,823.54x = 537,956.55 × 210,975.54
  4. Step 4: Simplify right side
    389,823.54x = 113,495,673,632.79
  5. Step 5: Solve for x
    x = 113,495,673,632.79/389,823.54
  6. Step 6: Final answer
    x = 291,146.28

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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.