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Finding the Fourth Proportional to 379,881.03, 524,200.59 and 210,111.51

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Solution

The fourth proportional to 379,881.03, 524,200.59 and 210,111.51 is: 289,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,881.03 : 524,200.59 = 210,111.51 : x
  2. Step 2: Convert to fraction form
    379,881.03/524,200.59 = 210,111.51/x
  3. Step 3: Cross multiply
    379,881.03x = 524,200.59 × 210,111.51
  4. Step 4: Simplify right side
    379,881.03x = 110,140,577,507.79
  5. Step 5: Solve for x
    x = 110,140,577,507.79/379,881.03
  6. Step 6: Final answer
    x = 289,934.40

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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.