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Finding the Fourth Proportional to 388,868.01, 536,637.60 and 210,020.01

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Solution

The fourth proportional to 388,868.01, 536,637.60 and 210,020.01 is: 289,827.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,868.01 : 536,637.60 = 210,020.01 : x
  2. Step 2: Convert to fraction form
    388,868.01/536,637.60 = 210,020.01/x
  3. Step 3: Cross multiply
    388,868.01x = 536,637.60 × 210,020.01
  4. Step 4: Simplify right side
    388,868.01x = 112,704,634,118.38
  5. Step 5: Solve for x
    x = 112,704,634,118.38/388,868.01
  6. Step 6: Final answer
    x = 289,827.48

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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.