Home / 398,325.03-549,681.62-217,038.45

Finding the Fourth Proportional to 398,325.03, 549,681.62 and 217,038.45

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Solution

The fourth proportional to 398,325.03, 549,681.62 and 217,038.45 is: 299,509.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,325.03 : 549,681.62 = 217,038.45 : x
  2. Step 2: Convert to fraction form
    398,325.03/549,681.62 = 217,038.45/x
  3. Step 3: Cross multiply
    398,325.03x = 549,681.62 × 217,038.45
  4. Step 4: Simplify right side
    398,325.03x = 119,302,048,715.09
  5. Step 5: Solve for x
    x = 119,302,048,715.09/398,325.03
  6. Step 6: Final answer
    x = 299,509.29

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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.