Home / 389,208.02-537,106.82-210,360.02

Finding the Fourth Proportional to 389,208.02, 537,106.82 and 210,360.02

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Solution

The fourth proportional to 389,208.02, 537,106.82 and 210,360.02 is: 290,296.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,208.02 : 537,106.82 = 210,360.02 : x
  2. Step 2: Convert to fraction form
    389,208.02/537,106.82 = 210,360.02/x
  3. Step 3: Cross multiply
    389,208.02x = 537,106.82 × 210,360.02
  4. Step 4: Simplify right side
    389,208.02x = 112,985,801,397.34
  5. Step 5: Solve for x
    x = 112,985,801,397.34/389,208.02
  6. Step 6: Final answer
    x = 290,296.69

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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.