Home / 380,038.36-524,446.02-210,272.50

Finding the Fourth Proportional to 380,038.36, 524,446.02 and 210,272.50

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Solution

The fourth proportional to 380,038.36, 524,446.02 and 210,272.50 is: 290,172.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,038.36 : 524,446.02 = 210,272.50 : x
  2. Step 2: Convert to fraction form
    380,038.36/524,446.02 = 210,272.50/x
  3. Step 3: Cross multiply
    380,038.36x = 524,446.02 × 210,272.50
  4. Step 4: Simplify right side
    380,038.36x = 110,276,575,740.45
  5. Step 5: Solve for x
    x = 110,276,575,740.45/380,038.36
  6. Step 6: Final answer
    x = 290,172.22

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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.